Spinning frame



Sept. 23, 1941. w. s. EASTMAN 2,257,043 SPINNING FRAME 4 Filed June 4, 1940 Lgf Patented Sept. 23, 1941 Walter S. Eastman, Glendale, R..Y I., assigner to Stillwater Worsted Mills, a corporation of Rhode Island Application .lune 4, 1940,. Serial No. 3383.921

(Cl. I9--1'30l 19 Claims.

My invention relates to spinning frames.

It has among its objects toprovide an improved pressure mechanism therefor of the type wherein the twisting function is divorced from the drafting function. A further object is to provide such a mechanism wherein the pressure means of' this pressure mechanism is both mounted in an improved manner and adapted tocooperate with the top front roll in an improved manner whereby breakagev of the yarn is reduced and the Work of the operator further facilitated. Further objects ofv my invention are to provide such improved mechanism of the i-ndividually mounted type having` an individual pressure roll presenting an exposedA end and also such amech-anism wherein this roll is mounted in such an improved man-ner on the usual lateral extension onits swinging frameV as toenable the pressure lmeans to cooperate inan improved and uniform mannerthroughout its length with the top front roll, While also Ybeing automatically retained on its support without requiring special stop means. A still further' object of my inventionisto provide improved mounting means for the pressure roll carriedon the front end of the swinging carrying frame therefor` and including improved ro-llcarrying, pivoting, and adjusting means. Ih-ese and other objects and advantages of my inventionr will, however, hereinafter more fully appear.

In the accompanying drawing, I have shown forpurposes of' illustration one embodiment which myv invention may assume in practice.

In the drawing:

Y Figure I is any end elevation of a spinning frame equipped with my improvement;

Fig. 2 is a partial front elevation of' the spinningfframe so equipped;

Fig. 3- is a sectional' View online 3 3 of Figurel;

Fig. 4 is a perspective View showing a roll supporting structure onthe front end ofk the swinging frame, the roll being shown in spaced' relation thereto;

Fig. 5-'is an enlarged detailL of the pressure roll and itsmounting ;v

Fig. 6- is a sectional View online 6 6 of Figure- 5, and v Fig- 7 isa sectional- View on line If- 1' of Figure 6;

In this illustrative construction, I have shown a spinning frame of standard` construction including drafting mechanism havingy a usual carriagestand IL and: suitable drafting mechanism ,a and cooperating cork covered top front rolls 3, as well as usual closed pigtail guides. 4 above usual whirled bobbins E disposed under usual caps 8;. my improvementsv herein relating to improved mounting means, hereinafter described, for the pressure. rolls 'I carried on theY swinging pressure frame 8 pivoted in a usual manner on the front, saddle bar of the. stand.' I'.

In my improved construction,- itv will be. noted that the frame 8, instead of being provided as heretofore with an integral lateral extension on its front end on Which the pressure ,roll is merelyrotatably mounted herein has improved roll carrying means atA its front end. More particularly, herein an upstanding block 9 is suitably threaded onvv a longitudinally l extending front threaded portion l0 on the frame 8 and positioned-thereon by a suitable lock nut I I. Herein, this block 9 also has an arm I2 fixed in the v top thereof and projecting laterally from one side thereof asl shown iny Figure 5, and also canted slightly forward with respect tor ther block as shown in Figure 7., Pivoted on this arm I2 is also a. roll' journaling and supporting sleeve I3 oi substantially the Width of the roll 'l and received in an enlarged axial bore I4. in the latter and relative to which the. roll, is freely rotatable. As shown in Figure 6, a pivot pin I5 also extends transversely through the arm I2 intermediat'e its. ends. and through spaced washers I6 within the sleeve I3 and shaped to conform to theA inner periphery thereof' and disposed on opposite sides of the armv I2', While the ends of the pin I5' are riveted in suitable countersinks in the periphery oi the sleeve I3`.

In the use of' my improved construction, it will be apparent that,v while carried on the canted arm I2=, the roll 1, by reason of the floating mounting or swiveling of the sleeve I3, can conform to the surface of the roll 3, as desired, in such manner as to provide the desired full length contact, and resultant uniform pressure onv the yarn between these rolls. Further, due to the slight forward canting of the pin I2', it will be observed that the eiiect of the rotation of the roll 3 is such as to cause the roll 'Ii to be retained onits arm or stud I2' as the rolls` rotate together. It will also be apparent that through the adjustment provided between the threaded block i) and the threaded endA I0 of the swinging frame 8, it is possible. to adjust the sleeve |32 and roll 'I as desired' relative to the roll: 3 and frame 8, while the nut IL'I` retains the parts in any desired positio-nl of adjustment.

thereon including' usual front* lower uted rolls 55' As a result of my improvements, it is possible not only to obtain the above advantages, but also materially to reduce yarn breakage While retaining the essential advantages of a pressure means of this type. Further, the Work of the operator and replacement of the rolls is facilitated, any need for cotter pin or other connections on the lateral extension at the free end of the roll 1 being eliminated and the latter being readily and quickly slipped onv and off the sleeve I3 Whenever the frame v8 is depressed. Further, it Will be noted that as a result of this construction, the roll 'I while preferably formed of hardl wood is alsoof such form as to be adapted to be inexpensively supplied when formed of other materials having a coeicient of friction' adapted' to cooperate with the cork covered'roll 3.' At-` tention is also directed to the fact that the block 9 and connected sleeve I3 also form` a unit adapt-5 ed to be readily replaced Without changeinthe These and other frame 8 carrying the same. advantages of my improvementr Will,.however, be apparent to those skilled in the art.

Y While I have-.inrthis application Vspecifically described'one embodiment' which my invention may assume in practice, it will be understood that the sameis shown' for purposes of illustration,

and that 'the invention may be modified and and a floating Vmounting.v between Ysaid `support and pressure means. p u

2. a spinning frame,VIV cooperating front draftingrolls, pressurey mechanism including a movable support biased Vto operative position and pressure meansY thereon for pressing the yarn` againstthe top front vroll,-and a swivel'between said-pressure meansrand said support for en-` abling'the surface of said pressure means to conform throughout its length to the surfaceof said front roll. Y K

3.`v In a spinning frame, cooperating front drafting rolls, pressure mechanism including a movable support and pressure means thereon for pressing the yarnagainst thel toprfront roll, and means for enabling said Ypressure 'means 'to conform to said top. front r'ollincluding a swivel connection between said pressure means and said support.

nection between Vsaid pressure means-and said lateral extension.

6. In a spinning frame, cooperating front'v rolls, pressure mechanism for pressing the yarn against the top front roll including pressure means located in front of the nip of said front rolls and a swinging mount having a lateral extension thereon on which said pressure means is carried, and means for enablingsaidpressure means to engage throughout its length with said top front roll including a pivotal connection between said pressure means and said lateral ex- 4. In aspinning iframe, cooperating f1ont vdrafting rolls, pressure mechanism including a movable support and pressure meansv thereon for pressing the yarnagainstthe top front roll, and f Y drafting rolls, 'pressure mechanism for pressing vthe yarn against the top front roll including pressure means located infront of the nip of said'frontrolls and a swinging mount having a lateral extension thereon on which said pressure means A' is'carried, and means for enabling said` pressure means to engage throughout its length yWith said. top `front roll including a pivotal contension and spaced longitudinally between the y ends of said pressure means.

7. In ka spinning frame, drafting mechanism including cooperating front rolls, a movable pressure frame having a front lateral extension, and

pressure means pivotally mounted on said lateral extension for pressing the yarn against the top front roll. Y

8. In a spinnngframe, drafting mechanism including cooperating front rolls, pressure means for pressing the yarn Aagainst the top front roll, av pressure frame Vbiased to operative position and having a front lateral extension, and a floating mounting for said pressure means lon said lateral `extension for enabling said pressure means to conform to said roll.

9.1Ivn a spinning frame, drafting mechanism including cooperating front rolls, a movable pressure frame having a front lateral extension, and pressure means pivotally mounted on said lateral extension for'pressing the yarn against theY top front roll including ya roll carrying sleeve'pivoted on saidextension.

10. In a spinning framedrafting mechanism including cooperating frontrolls, a movable pressure frame having a frontlateral extension, and pressure means pivotallyrmountedon said lateral Aextension for pressingthe yarn against the top front roll including a rollcarrying sleeve pivoted onsaidextension on an axis extending transversely relative to said extension.

11. In a spinning frame, drafting mechanism including cooperating front rolls, a movable pressure. frame having a front lateral extension, and pressure means pivotally mounted on said lateral `extension for pressing theyarn against the top front roll,l and-means for longitudinally adjusting said front lateral connection bodilyrelative 4to said frame. Y

12. In a spinning frame, drafting mechanism including cooperatingfront rolls, a movable pressure frame having a front lateral extension canted slightly forward :with respect to said frame, vand pressure means pivotally mounted on said canted extension.l

13. In a spinning frame, drafting mechanism including cooperating front rolls, a movable pressure frame having a front lateral extension canted slightly forward with respect to said frame', a sleeve v.pivotally mounted on said canted extension, and a pressure roll carried on said sleeve.

14. In a spinning frame, drafting mechanism including cooperating front rolls, a movable pressure frame havinga front lateral extension pressure roll rotatably mounted on said extension, and means between said extension and roll for enabling the latter to engage throughout its length with the top front roll.

16. In an attachment for spinning frames having front draftingrolls, pressure mechanism including a frame biased into operative position, pressure means for pressing the yarn against the top front roll, and a floating mounting between said frame and said pressure means for enabling the latter to conform to such a roll.

17. In an attachment for spinning frames having front drafting rolls, pressure mechanism including a swinging lateral extension, pressure means carried by said lateral extension and engageable with the top front roll, and a pivotal connection between said pressure means and said lateral extension.

18. In an attachment for spinning frames having front drafting rolls, pressure mechanism including a swinging pressure frame having a lateral extension canted slightly with respect to said frame, and a pressure means pvotally mounted on said extension and engageable with the top front roll.

19. In an attachment for spinning frames having front drafting rolls, pressure mechanism including a swinging pressure frame having a lateral extension, a pivotally connected sleeve carried on said extension, and a roll rotatable on said sleeve and engageable with said top front roll.

WALTER. S. EASTMAN. 

